I am also very interested in getting the most current Cinnamon into Linux Mint 13 (LTS). I have two questions regarding your solution, which I really appreciate you having shared, are:

1> In mixing both LM versions with an ubuntu ppa, how dangerous is this regarding unresolvable package conflicts during updates?2> Clem has stated that eventually all (or most) of the new Cinnamon features from LM 14 will be backported to LM 13. Once these backports start, would it be advisable to return 'etc/apt/preferences' to its original form?

Thanks for helping clarify this for my confused and cluttered mind ...

hi1- there shouldn't be any kind of conflicts because a) we are giving the ppa the same weight as the mint repos so the replaces should be smooth and b) the ppa has all the packages needed https://launchpad.net/~gwendal-lebihan- ... mon-stable (furthermore glebihan the maintainer is no outsider, is a mint dev)

2- most probably the ppa will always be (while it's possible to backport the latest cinnamon into mint13) ahead of the "official" version in the repo (the QA to add a package to a ppa or to a distro repo are different) and Clem is usually more conservative.